Loom-controlling mechanism.



J. REGAN.

LOOM CONTROLLING MECHANISM.

APPLlCATlON FILED MAR- 3. I917.

1,259,668. Patented Mar. 19,191&

2 SHEETS-SHEET I.

J. REGAN.

LOOM CONTROLLING MECHANISM.

APPLICATION FILED MAR. 3. I917.

Patented Mar. 19, 1918.;

2 SHEETS-SHEET 2.

TNT SAES .T @FFEQE.

JOHN REGAN, OF NEW IBEDFORD, MASSACHUSETTS, ASSIGNOR TO CBOMPTON & KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

LOOM-OONTROLLING MECHANISM.

Specification of Letters Patent.

Patented- Mar. 19, 1 918.

To all whom it may concern:

Be it known that 1, JOHN REGAN, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and useful Loom-Controlling Mechanism, of which the following is a specification.

This invention relates to loom controlling mechanism and more particularly to mechanism for controlling the changes in weave in looms for weaving towels or other similar goods having successive portions of the body weave separated by interposed border portions or headings- It is the object of my invention to provide a simple and reliable mechanism for periodically starting the. pattern mechanism which controls the special weave of the border or heading.

In the preferred form this starting mechanism isdriven in fixed relation to the rotation of tlie take-up roll, and the pattern mechanism is thus rendered operative after a predetermined advance movement of" the roll which also corresponds to a definite length of cloth produced. An important feature of my invention relates to the provision of yielding connections between the different controlling devices and the driving mechanism, said yielding connections making possible the desired cooperation of the several controlling devices. My invention also relates to arrangements and combinations of parts hereinafter described and more specifically pointed out in the appended claim.

A preferred form of my invention is shown in the drawings in which- Figure 1 is a left-hand side elevation of a loom having my improvements embodied therein, and

Fig. 2 is a rear elevation of the pattern mechanism which controls the special weave of the border or heading.

Referring to the drawings, I have shown a loom side 10 on which is mounted apattern mechanism M which may be of any usual and suitable form. As shown in the drawings the pattern mechanism is operated through a vertical shaft 11 having a clutch member or collar 12 keyed thereto and slidable thereon. The collar 12 may be positioned in driving engagement with a clutch member 13 loose upon the shaft 11 and having driving connection with a bevel gear 14 continuously rotated by a bevel pinion 15 fast on a driving shaft 16.

The collar 12 is engaged by a yoke lever 20 mounted upon a fixed pivot 21 (Fig. 2') and connected by a link 22 to a lever 23 pivoted at 24; to the loomside 10. Separate controlling devices are provided for moving the lever 23- in opposite directions to engage or disengage the clutch members 12' and 13.

The mechanism for disengaging the clutch comprises a pattern lever 25' (Fig. 2) mounted on a fixed pivot 26 and controlled by a pattern chain 27 having a single pattern roll 28 thereon. This chain 27 makes a complete circuit during the weaving of the special heading or border between succes sive body portions of the fabric, and as the heading is completed the roll 28 is advanced to the position shown in Fig; 2 in which it raises the lever 25. This lever is connected to a stud 29 n the end of the lever 23' by an extensible link 30 comprising upper and lower members slidably connected and yieldingly retained in the position shown in Fig. 2 by an interposed coil spring 31. The raising of the lever 25 by the roll 28 acting through the link 30, the lever 23, the link 22 and the yoke 30 raises the clutch collar 12 and stops the pattern mechanism.

I will now describe the mechanism for engaging the clutch to start the pattern mechanism again in operation. The loom is provided with the usual take-up or sand roll 32 mounted in fixed bearings in the loom sides, and I have provided a sprocket wheel 33 connected by gears 34 and 35 with a pinion 36 on the take-up roll shaft. A pattern chain 37 is driven by the sprocket wheel 33, a guide pulley 38 providing a lower support for the chain. The chain 37 carries a single projection 39 adapted to engage the forwardly extending end 40 of the lever 23.

Such engagement of the lever by the projection 39 depresses the rear end of the lever 23 and thus causes the clutch collar 12 to be engaged by the driving collar 13, thus placing the pattern mechanism M again in operation. The pattern lever 25 is still held in raised position by the roll 28 when the lever 23 is depressed by the projection 39. Such depression is made possible by the yielding link 30 which is extended, com

pressing the spring 81, whenever the lever 23 is depressed by the projection 39.

After the clutch members 12 and 13 are engaged, the roll 28 is immediately removed from beneath the lever 25 and the clutch will thus remain in engagement after the projection 39 has passed from beneath the end 40 of the lever 23. A light coil spring 41 on the shaft 11 holds the clutch members in driving engagement.

The pattern mechanism will thus complete its cycle of operations, weaving the special border or heading, and at the end of this cycle the roll 28 will return to the position shown in Fig. 2, raising the lever 25 and stopping the pattern mechanism,

which will then remain at rest until the projection 89 completes its circuit and again raises the end 40 of the lever 23. The parts are so proportioned that the advance movesult not obtained with the controlling mechanism heretofore commonly used.

Having thus described my invention, it

will be evident that changes and modifications can be made thereinv by those skilled in the art without departing from the spirit and scope of my invention as set forth in the claim, and I do not wish to be otherwise limited to the details herein disclosed, but what I claim is In a loom, a take-up roll, a pattern mechanism, means to drive said mechanism, a separate pattern chain driven in fixed relation to the rotation of said take-up roll and having a projection thereon, a lever controlled by said chain, connections from said lever to said driving means through which'said lever is effective to render .said means'operative when moved by said projection on said pattern chain, a lever in said pattern mechanism, a chain controlling said lever and havingan indicator thereon, and an extensible link between'said levers through which said latter lever can render said driving means inoperative at the completion of the cycle of operations controlled by said pattern mechanism, said link also permitting said first lever to be moved to render said driving means operative while the second lever remains in the position in which it renders said driving means inoperative.

In testimonywhereof I have hereunto affixed my signature. V y l JOHN REGAN. 7

Copies 01 this patent may be obtained for five cents each. by addressing the Commissioner of Patents; 7

Washington, D. 0. i 

